Ivory Tower (Preston Poulter) (SB) [Pro Tour Collector Set] Fifth Dawn Whenever another nontoken creature enters

Whenever another nontoken creature enters the battlefield under your control

sacrifice Helm of Obedience and put one of them onto the battlefield under your control

Set: Unlimited Edition Type: Enchantment Rarity: Rare Cost: {R}{R} At the beginning of each player's upkeep

Set: Legends Type: World Enchantment Rarity: Rare Cost: {2}{R} All creatures lose flying

Set: Gatecrash Type: Land — Mountain Plains Rarity: Rare ({T}: Add {R} or {W}

Ivory Tower (Preston Poulter) (SB) [Pro Tour Collector Set] Fifth Dawn Whenever another nontoken creature entersSet: Pro Tour Collector Set Type: Artifact Rarity: Rare Cost: {1} At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4. Valuing scholarship above all else, the inhabitants of the Ivory Tower reward those who sacrifice power for knowledge.